lotus/cmd/lotus-bench/main.go
2020-01-30 23:50:24 +01:00

380 lines
10 KiB
Go

package main
import (
"bytes"
"context"
"crypto/sha256"
"encoding/json"
"fmt"
"io/ioutil"
"math/big"
"math/rand"
"os"
"path/filepath"
"time"
"github.com/docker/go-units"
ffi "github.com/filecoin-project/filecoin-ffi"
paramfetch "github.com/filecoin-project/go-paramfetch"
"github.com/ipfs/go-datastore"
logging "github.com/ipfs/go-log/v2"
"github.com/mitchellh/go-homedir"
"golang.org/x/xerrors"
"gopkg.in/urfave/cli.v2"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-sectorbuilder"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/genesis"
)
var log = logging.Logger("lotus-bench")
type BenchResults struct {
SectorSize uint64
SealingResults []SealingResult
PostGenerateCandidates time.Duration
PostEProofCold time.Duration
PostEProofHot time.Duration
VerifyEPostCold time.Duration
VerifyEPostHot time.Duration
}
type SealingResult struct {
AddPiece time.Duration
PreCommit time.Duration
Commit time.Duration
Verify time.Duration
Unseal time.Duration
}
func main() {
logging.SetLogLevel("*", "INFO")
log.Info("Starting lotus-bench")
build.SectorSizes = append(build.SectorSizes, 1024)
app := &cli.App{
Name: "lotus-bench",
Usage: "Benchmark performance of lotus on your hardware",
Version: build.UserVersion,
Flags: []cli.Flag{
&cli.StringFlag{
Name: "storage-dir",
Value: "~/.lotus-bench",
Usage: "Path to the storage directory that will store sectors long term",
},
&cli.StringFlag{
Name: "sector-size",
Value: "1GiB",
Usage: "size of the sectors in bytes, i.e. 32GiB",
},
&cli.BoolFlag{
Name: "no-gpu",
Usage: "disable gpu usage for the benchmark run",
},
&cli.StringFlag{
Name: "miner-addr",
Usage: "pass miner address (only necessary if using existing sectorbuilder)",
Value: "t0101",
},
&cli.StringFlag{
Name: "benchmark-existing-sectorbuilder",
Usage: "pass a directory to run election-post timings on an existing sectorbuilder",
},
&cli.BoolFlag{
Name: "json-out",
Usage: "output results in json format",
},
&cli.BoolFlag{
Name: "skip-unseal",
Usage: "skip the unseal portion of the benchmark",
},
},
Action: func(c *cli.Context) error {
if c.Bool("no-gpu") {
os.Setenv("BELLMAN_NO_GPU", "1")
}
robench := c.String("benchmark-existing-sectorbuilder")
var sbdir string
if robench == "" {
sdir, err := homedir.Expand(c.String("storage-dir"))
if err != nil {
return err
}
os.MkdirAll(sdir, 0775)
tsdir, err := ioutil.TempDir(sdir, "bench")
if err != nil {
return err
}
defer func() {
if err := os.RemoveAll(tsdir); err != nil {
log.Warn("remove all: ", err)
}
}()
sbdir = tsdir
} else {
exp, err := homedir.Expand(robench)
if err != nil {
return err
}
sbdir = exp
}
maddr, err := address.NewFromString(c.String("miner-addr"))
if err != nil {
return err
}
sectorSizeInt, err := units.RAMInBytes(c.String("sector-size"))
if err != nil {
return err
}
sectorSize := uint64(sectorSizeInt)
mds := datastore.NewMapDatastore()
cfg := &sectorbuilder.Config{
Miner: maddr,
SectorSize: sectorSize,
WorkerThreads: 2,
Dir: sbdir,
}
if robench == "" {
if err := os.MkdirAll(sbdir, 0775); err != nil {
return err
}
}
if err := paramfetch.GetParams(build.ParametersJson(), sectorSize); err != nil {
return xerrors.Errorf("getting params: %w", err)
}
sb, err := sectorbuilder.New(cfg, mds)
if err != nil {
return err
}
dataSize := sectorbuilder.UserBytesForSectorSize(sectorSize)
var sealTimings []SealingResult
var sealedSectors []ffi.PublicSectorInfo
numSectors := uint64(1)
for i := uint64(1); i <= numSectors && robench == ""; i++ {
start := time.Now()
log.Info("Writing piece into sector...")
r := rand.New(rand.NewSource(100 + int64(i)))
pi, err := sb.AddPiece(dataSize, i, r, nil)
if err != nil {
return err
}
addpiece := time.Now()
trand := sha256.Sum256([]byte(c.String("ticket-preimage")))
ticket := sectorbuilder.SealTicket{
TicketBytes: trand,
}
log.Info("Running replication...")
pieces := []sectorbuilder.PublicPieceInfo{pi}
pco, err := sb.SealPreCommit(context.TODO(), i, ticket, pieces)
if err != nil {
return xerrors.Errorf("commit: %w", err)
}
precommit := time.Now()
sealedSectors = append(sealedSectors, ffi.PublicSectorInfo{
CommR: pco.CommR,
SectorID: i,
})
seed := sectorbuilder.SealSeed{
BlockHeight: 101,
TicketBytes: [32]byte{1, 2, 3, 4, 5},
}
log.Info("Generating PoRep for sector")
proof, err := sb.SealCommit(context.TODO(), i, ticket, seed, pieces, pco)
if err != nil {
return err
}
sealcommit := time.Now()
commD := pi.CommP
ok, err := sectorbuilder.ProofVerifier.VerifySeal(sectorSize, pco.CommR[:], commD[:], maddr, ticket.TicketBytes[:], seed.TicketBytes[:], i, proof)
if err != nil {
return err
}
if !ok {
return xerrors.Errorf("porep proof for sector %d was invalid", i)
}
verifySeal := time.Now()
if !c.Bool("skip-unseal") {
log.Info("Unsealing sector")
rc, err := sb.ReadPieceFromSealedSector(1, 0, dataSize, ticket.TicketBytes[:], commD[:])
if err != nil {
return err
}
if err := rc.Close(); err != nil {
return err
}
}
unseal := time.Now()
sealTimings = append(sealTimings, SealingResult{
AddPiece: addpiece.Sub(start),
PreCommit: precommit.Sub(addpiece),
Commit: sealcommit.Sub(precommit),
Verify: verifySeal.Sub(sealcommit),
Unseal: unseal.Sub(verifySeal),
})
}
beforePost := time.Now()
var challenge [32]byte
rand.Read(challenge[:])
if robench != "" {
// TODO: this assumes we only ever benchmark a preseal
// sectorbuilder directory... we need a better way to handle
// this in other cases
fdata, err := ioutil.ReadFile(filepath.Join(sbdir, "pre-seal-"+maddr.String()+".json"))
if err != nil {
return err
}
var genmm map[string]genesis.GenesisMiner
if err := json.Unmarshal(fdata, &genmm); err != nil {
return err
}
genm, ok := genmm[maddr.String()]
if !ok {
return xerrors.Errorf("preseal file didnt have expected miner in it")
}
for _, s := range genm.Sectors {
sealedSectors = append(sealedSectors, ffi.PublicSectorInfo{
CommR: s.CommR,
SectorID: s.SectorID,
})
}
}
log.Info("generating election post candidates")
sinfos := sectorbuilder.NewSortedPublicSectorInfo(sealedSectors)
candidates, err := sb.GenerateEPostCandidates(sinfos, challenge, []uint64{})
if err != nil {
return err
}
gencandidates := time.Now()
log.Info("computing election post snark (cold)")
proof1, err := sb.ComputeElectionPoSt(sinfos, challenge[:], candidates[:1])
if err != nil {
return err
}
epost1 := time.Now()
log.Info("computing election post snark (hot)")
proof2, err := sb.ComputeElectionPoSt(sinfos, challenge[:], candidates[:1])
if err != nil {
return err
}
epost2 := time.Now()
if bytes.Equal(proof1, proof2) {
log.Warn("separate epost calls returned the same proof values (this might be bad)")
}
ok, err := sectorbuilder.ProofVerifier.VerifyElectionPost(context.TODO(), sectorSize, sinfos, challenge[:], proof1, candidates[:1], maddr)
if err != nil {
return err
}
if !ok {
log.Error("post verification failed")
}
verifypost1 := time.Now()
ok, err = sectorbuilder.ProofVerifier.VerifyElectionPost(context.TODO(), sectorSize, sinfos, challenge[:], proof2, candidates[:1], maddr)
if err != nil {
return err
}
if !ok {
log.Error("post verification failed")
}
verifypost2 := time.Now()
bo := BenchResults{
SectorSize: cfg.SectorSize,
SealingResults: sealTimings,
PostGenerateCandidates: gencandidates.Sub(beforePost),
PostEProofCold: epost1.Sub(gencandidates),
PostEProofHot: epost2.Sub(epost1),
VerifyEPostCold: verifypost1.Sub(epost2),
VerifyEPostHot: verifypost2.Sub(verifypost1),
} // TODO: optionally write this as json to a file
if c.Bool("json-out") {
data, err := json.MarshalIndent(bo, "", " ")
if err != nil {
return err
}
fmt.Println(string(data))
} else {
fmt.Printf("results (%d)\n", sectorSize)
if robench == "" {
fmt.Printf("seal: addPiece: %s (%s)\n", bo.SealingResults[0].AddPiece, bps(bo.SectorSize, bo.SealingResults[0].AddPiece)) // TODO: average across multiple sealings
fmt.Printf("seal: preCommit: %s (%s)\n", bo.SealingResults[0].PreCommit, bps(bo.SectorSize, bo.SealingResults[0].PreCommit))
fmt.Printf("seal: commit: %s (%s)\n", bo.SealingResults[0].Commit, bps(bo.SectorSize, bo.SealingResults[0].Commit))
fmt.Printf("seal: verify: %s\n", bo.SealingResults[0].Verify)
if !c.Bool("skip-unseal") {
fmt.Printf("unseal: %s (%s)\n", bo.SealingResults[0].Unseal, bps(bo.SectorSize, bo.SealingResults[0].Unseal))
}
}
fmt.Printf("generate candidates: %s (%s)\n", bo.PostGenerateCandidates, bps(bo.SectorSize*uint64(len(bo.SealingResults)), bo.PostGenerateCandidates))
fmt.Printf("compute epost proof (cold): %s\n", bo.PostEProofCold)
fmt.Printf("compute epost proof (hot): %s\n", bo.PostEProofHot)
fmt.Printf("verify epost proof (cold): %s\n", bo.VerifyEPostCold)
fmt.Printf("verify epost proof (hot): %s\n", bo.VerifyEPostHot)
}
return nil
},
}
if err := app.Run(os.Args); err != nil {
log.Warn(err)
return
}
}
func bps(data uint64, d time.Duration) string {
bdata := new(big.Int).SetUint64(data)
bdata = bdata.Mul(bdata, big.NewInt(time.Second.Nanoseconds()))
bps := bdata.Div(bdata, big.NewInt(d.Nanoseconds()))
return (types.BigInt{bps}).SizeStr() + "/s"
}